Marvin John Heemeyer

The Legend of Killdozer


Komatsu D355A bulldozer armored with layers of steel & concrete

52 year old welder Marvin Heemeyer lived in Granby, Colorado fixing vehicle mufflers.  His small repair shop was located near a concrete factory called Mountain Park.  To Marvin and his neighbors’ horrors, the owners of Mountain Park decided to expand the factory, forcing the people living near-by to sell their land to Mountain Park.

Sooner or later the factory’s neighbors gave up, except for Marvin.  Marvin wasn’t a pussy. Having tried every way possible, the owners of the factory failed to acquire his land.  However, all the surrounding land was now owned by the factory, which resulted in Marvin’s shop getting cut off from the rest of the world.

The zoning board of Granby, Colorado allowed the construction of a concrete plant near him, cutting off the road to his muffler shop, spewing concrete dust all over the shop, and cutting off its water and sewage lines. Marvin purchased a Komatsu D335-A bulldozer in an auction in California, and had it shipped to Granby, where he planned to use it to bulldoze a new road to his muffler shop. The city unfairly denied his petition to bulldoze a new road, his petition to extend a sewage line across eight feet of the concrete plant’s property, and fined him $2,500 for not being connected to the city sewage line from which it had just cut him off.



Marvin tried everything in his powers to restore justice.  Obviously, the city council and other politicians of the state were on the factory owners’ evil capitalist side.  It’s not surprising that Marvin lost the case to the owners, in court. After that, Marvin was also given a $2,500 fine for not having a connected sewer line.  When paying the fine, Marvin attached a note to the check and ticket that read “Cowards.”

While Marvin lost his legal battles, the Komatsu stood outside his shop with a “for sale” sign as camouflage. Suddenly, Heemeyer and the Komatsu disappeared almost overnight. Many Granby residents assumed that Marvin had left town. Instead, he was living in leased garage space with the Komatsu.

He was just one of those who would not give up.  On the 4th of June, 2004, during a rainy day, Marvin rolled out into town on a bulldozer reinforced with metal sheets & concrete that would bitch-slap the world: Killdozer.


Killdozer Smash!

He started with the concrete factory, destroying building after building, until the factory was demolished.  Take that, assholes.  Then it was the city council’s turn, followed by the town hall, then the bank, the public library, the fire station, a warehouse, the local paper, and other buildings belonging to the mayor.

Having tried to stop Heemeyer, the police finally understood that Marvin’s bulldozer was a malevolent force straight from the bowels of hell and nothing was going to put the kibosh on its journey.  More than 200 bullets were fired at the vehicle, causing no harm at all.  The police force then decided to battle the titan with hand grenades.  Once again their efforts were useless.  Later a vehicle rigged with explosives was put in Marvin’s path to destruction; it also had little luck in stopping him.


Marvin returned fire using two semi-automatic .23 caliber rifles and a single .50 caliber semi-automatic rifle through specially designed holes in the vehicle’s front, left and right sides.  Attempts to mount the bulldozer were hampered due to oil that Heemeyer had spread on the vehicle to hinder such an attack.  All the police were able to do, was evacuate 1,500 inhabitants (the town’s population was 2,200) and block all the roads, including a federal highway that lead to the town.

Marvin’s war ended at 4:23 PM.  Having just finished destroying the Gambles Mall, the bulldozer suddenly stopped.  The only thing that could be heard coming from Marvin’s death machine was smoke out of a damaged radiator.


At first, the police officers were too afraid to approach the thing.  Trying to get Marvin out of his fortress, they had to make a hole in the armor.  When they finally got through, Marvin was already dead.  He wasn’t going to get into the enemy’s hands alive.

Despite the great damage to property (13 buildings were destroyed, most requiring hundreds of thousands of dollars to be replaced), no one besides Heemeyer was injured.  Observers noted that Heemeyer appeared to go out of his way to avoid injury to bystanders. The total damages were estimated at over $7 million.  The bulldozer also knocked out natural gas service to City Hall and the cement plant, and damaged a truck and part of a utility service center.


Killdozer Trash!

The governor said that the city looked as if a tornado had just gone through.  Later an investigation was carried out.  It was discovered that Marvin’s creation was so strong that even a powerful artillery blow would only cause minor damage.  The bulldozer was totally covered in sheet metal, with each piece being at least half an inch thick.  In places, the vehicle’s armor was over one foot thick, consisting of concrete sandwiched between sheets of steel to make ad hoc, composite armor.


To fit the bulldozer with this shell, Marvin had to use a self-made crane. “Lowering the protective armor onto the vehicle, Marvin knew he wouldn’t be able to get out” said police officials. Marvin packed the interior with supplies such as water, food, ammo and a gas mask. To control the Killdozer, Marvin used 3 monitors and a couple of video cameras that were protected on the outside by 3-inch shields of bullet-resistant plastic. In an event of the cameras being blinded by dust, they were fitted with air compressors.

It took Marvin 2 months to design the Killdozer, and according to sources, 1.5 years to build it. “He was a fine lad” said the people that were close to Marvin. “They shouldn’t have made him angry.  If he was your friend, he was your best friend. And if he was your enemy, well …he was your worst and most dangerous enemy.”  You don’t f@ck with bad-asses.


Marvin John Heemeyer (October 28, 1951 – June 4, 2004): Bulldozing Badass

Here is some live footage of Marv in action:


Here are the source links about him: and here: and here: and here:


One Response to “Marvin John Heemeyer”

  1. brethren Says:

    Can i get this with a two year lease, in red and with power-windows?

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